欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
为了研究水下信道中物体对声波的前向散射现象,建立了水下物体前向声散射计算的虚源模型,在消声水池中进行了模型实验,并在湖上进行了运动物体前向散射的验证性实验.仿真结果表明,物体的前向散射信号强度远远强于后向散射信号强度.测量得到柱形壳体的前向散射目标强度,和理论结果相比差别保持在3 dB左右.湖上实验结果表明,使用周期性LFM连续波信号可以观测到物体前向散射对接收声场的影响.
英文摘要：
To research forward acoustic scattering by submerged targets in an underwater waveguide,a virtual source model for target scattering in waveguides was developed.Experiments were conducted in a water tank and a lake.The simulation results showed that forward scattered signal strength is stronger than backward scattered signal strength.Actual measured forward target strength was about 3dB less than the modeled result.The results of experiments in a lake showed that perturbations in the received field caused by forward scattering of a moving object can be observed in a periodic continuous Linear Frequency Modulation（LFM） signal.
同期刊论文项目
同项目期刊论文
期刊信息
位置：